Irrigating system.



J: T. DONAHOO.

IRRIGATING SYSTEM.

APPLICATION FILED JUNE 25 1909.

Patented May 30, 1911.

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IRRIGATING SYSTEM. APPL cATioN FILED JUNE 25, 1009.

Patented May 30, 1911.

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. INF/EH70}? JAMES T. DuNAHmm ATTORNEYS ITNESSES JAMES TABB DONAHOO, 0FEDGAR, NEBRASKA.

lRRIG-ATING SYSTEM.

canoes.

Specification of Letters Iatent.

Patented May 36 1911..

Application filed June 25, 1909. Serial No. 504,257.

To all whom it may concern:

.Be it known that I, Janus T. DONAi-IOO, a citizen of the United States,and a resident of Edgar, in the county of Clay and State of Nebras (a,have invented a new and useful Improvement in irrigating Systems, ofwhich the following is a specification.

My invention relates to means "for irrigating lands, and it consists inthe construc tions, combinations and arrangements herein described andclaimed.

An object of my invention is to provide a system of irrigation which maybe successfully employed in those valleys in which there is a stream ofwater at whose level the land of the valley is more or less wet.

A further object of my invention is to provide an irrigating system inwhich lands at some distance from the stream may be irrigated withoutthe necessity of constructing ditches or canals leading from the streamitself.

A further object is to provide novel apparatus for accomplishing theirrigation of the lands in an economical manner.

Other objects and advantages will appear in the following specificationsand the novel features of the device will be particularly pointed out inthe appended claim.

My invention is illustrated in the accom panying drawing, in which-Figure 1 is a plan view, partly in section, along the line ll of Fig. 2.Fig. 2 is a sectional view along the line 2-2 of Fig. 1. Fig. 25 is asection along the line 3'3 of Fig. 1. i

in many of the valleys in the arid regions, through which rivers orstreams of water flow, it will be found that the surrounding country formiles around contains Water.

which may be found 'n'actically at the level of the river or streamitself. In some instances wells have been sunl: and pumps installed topump up the water. This is expensive and requires the services of anoporator to attend the engine or other motive power. My invention doesaway with the necessity of pumps or other water lifting machin ry anddepends on gravity alone.

In the drawing, .1 denotes a river which lows through a valley B. Thetract at C is the land to be irrigated which may be at a considerabledistance from the river A and above the level of the nearest point ofthe river. Starting back at a point D where the land is higher, 1construct a conduit E of cement or other material, the top of which isbelow the level of the river, (as shown at F in dotted lines in Fig. 3).This conduit is made air tight, but slopes from the outer ends 6 to thecenter 6 From the bottom of the conduit I run a series of vertical pipesor tubes G down into the water bearing gravel H, as shown in Fig. 2.These tubes are perforated at g to permit the entrance of water whilekeeping out the sand.

Leading from the conduit E, at the place where the sloping branchesconverge, is a lateral conduit K, which extends to the portion G of theland to be irrigated. This conduit is approximately level, but may beinclined to accelerate the flow. As will be seen from Fig. 3, itintersects the surface L of the land, and thus brings the water,which Cwhence it may be distributed by the ordinary irrigating ditches M, asshown in Fig. 1. The flow may be regulated by a headgate is at the endof the conduit K or by means of the gate 70 where the conduit K joinsthe conduit E.

From the foregoing description of the various parts of the system, theoperation thereof will be readily understood. The perforated pipes Gwhich extend down into the water bearing stratum will become filled withwater, which will rise in the pipes, into the water-tight conduit E, andwill then flow through the conduit down to its central point. In theconstruction just described, the inclinations of the portions of theconduit E, from the ends toward the center, will increase the flow ofwater, so that when the conduit is full and the head gate at it is openthe flow of water through the head-gate and through the pipe K willcause a vacuum and the suction thus created lower levels into theconduit. Tlnisa'continuous siphon action is maintainedwhich may beregulated by opening or closing the head-gate at c.

The system thus described provides for a continuous flow of waterwithout any other apparatus, and, as described, this flow may beregulated by means desired.

1 claim:

In an irrigating system for sloping land, a main under-groundimperforate conduit, said conduit consisting of two portions inclineddownwardly to a common center, a

rises into the conduit E, out upon the surface of the head-gate, as'

will tend to draw up the water. fromthe Water tight lateral conduitextending from downwardly from said main conduit into a sald commoncenter and intersecting the Water bearing stratum.

. sloping surface of the land at a point below JAMES TABB DONAHOO thetop of said main conduit, a head gate lat the point of intersection ofsaid lateral Witnesses:

conduit with the center of the main conduit, 4 F. J. HENDERSON, and aseries of perferated pipes extending M. D. ARMOUR.

